looks like a great design taking form. One thing I would of suggested for you or any other person trying to do a PVC pipe setup is to use Square fence post instead of the round 4" PVC. It is ALOT easier to work with and the baskets just sit and seal inside the square shape ALOT better. Just my 2cents.

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Chris Higgins
VT Horticulture
http://www.hydro-unlimited.com/
"Why buy from someone that wants your whole wallet or doesn't know how the systems they build really work and why?!?!?"